Reverse-Hyperthreading from AMD coming soon

Great read Moridin, clarified a few issues for me. Thanks

Understood. :) I do understand moridin's point. Its touched on in the linked article as well.

I also feel that the added programmer burden is quite a waste.

Quote:

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Originally Posted by Zvi

I really doubt it's a good idea. Gives more incentives to lazy programmers to stay on old, single thread technology instead of learning and using a new one. Yeah, MT is more complex and it has its limits but it's clearly more efficient (and complex to code) than ST. IMHO it's a push to keep marker share with minimal efforts.
BTW, for two cores the same limitations apply as for two threads. I.e. performance increase won't be 2x. And I'd think it will be much worse than two threads working on single task. In general those threads are coded by human programmer, and granted that he know what he was doing it'd be optimized to minimize lock contention and paralelize as much as possible. Now executing ST stream of machine code with two cores. I think it'll be much frequent case when one core has to wait for another core's result to get the job done.

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This post ignores the fact that there are limits to how parallel a task can be made. Not all code can be made multi-threaded. It's a much more complex issue than simply "lazy programmers".